Digital Commons Network^™

Influence Of Ergot Alkaloids On Rumen Motility: Time And Concentration Of Ergovaline + Ergovalinine Required To Impact Reticulorumen Motility, Kara Riccioni

Theses and Dissertations--Animal and Food Sciences

Fescue toxicosis is problematic for ruminant livestock, causing weight loss and low productivity when fed endophyte-infected forages. Complete underlying mechanisms of toxicosis are unknown therefore; the objective of the study was to determine if ruminally dosed ergot alkaloids impact rumen motility. Cannulated steers were pair-fed a forage diet and ruminally dosed with endophyte-free (E-) or endophyte-infected (E+) tall fescue seed. An 8-h period of rumen motility collection began 4-h after feeding by monitoring pressure change via a wireless telemetry and transducer system. In experiment 1, steers were paired by weight and assigned to E- or E+ treatment. Overall, E+ steers …

Assessment Of Bovine Vascular Serotonin Receptor Populations And Transport Of Ergot Alkaloids In The Small Intestine, Miriam A. Snider

Theses and Dissertations--Animal and Food Sciences

Prior work using a contractility bioassay determined that the serotonin (5-HT) receptor subtype 5-HT_2A is present in bovine lateral saphenous veins and plays a role in ergot alkaloid-induced vascular contraction in steers grazing endophyte-infected (Epichloë coenophiala) tall fescue (Lolium arundinaceum). A study was conducted to determine what 5-HT receptors are involved in vasoconstriction of bovine gut vasculature. The findings of this study indicate that 5-HT_2A is present and may play a role in ergot alkaloid induced vasoconstriction. A second study was conducted to determine if ergot alkaloids were transported in the small intestine. The …

Comparison Of Conception Rates In Beef Cattle Inseminated With Either Sexedultra™ Sex-Sorted Semen Or Conventional Semen In Fixed-Time Artificial Insemination (Ftai) Protocols, Benjamin R. Crites

Theses and Dissertations--Animal and Food Sciences

Estrous synchronization and artificial insemination (ESAI) are reproductive technologies that cattlemen can use to improve the reproductive performance of their herds. Controlling the gender ratio of the calf-crop can also improve the opportunity for increased revenue and profit. Producers are able to shift and/or control the gender ratio of their calf crop by incorporating sex-sorted semen into their AI programs. However, decreased conception rates to AI have been previously observed when sex-sorted semen was used in comparison to conventional semen of the same sires. The objective of the first study was to determine if conception rates will differ …

Weenie Boys, Kristopher J. Kern

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Universal Depression Screening In Student Health Centers Across U.S. College Campuses: Prevalence And Characteristics Associated With Use, Ivie English

Graduate Student Theses, Dissertations, & Professional Papers

Universal depression screening at university student health centers can increase identification and treatment of depression among college students, but the rates of screening in these settings were, until now, unknown (Shepardson & Funderburk, 2014). The U.S. Preventive Services Taskforce (USPSTF), American College Health Association, and other organizations have recommended that all primary care settings universally screen for depression, provided that necessary supports are in place (USPSTF, 2016; ACHA, 2010). Notably, others disagree (Joffres et al., 2013; Mitchell et al., 2009; Gilbody et al., 2005). An online survey was electronically mailed to 493 college health center directors and/or medical directors of …

Hslic Annual Report Fy2016-17, University Of New Mexico Health Sciences Library And Informatics Center

HSLIC Annual Reports

No abstract provided.

彩園健康食譜 : 下集 = Lingnan Garden Healthy Recipes : Part Two, 香港嶺南大學服務研習處, 嶺南彩園, 群芳文化研究及發展部, 香港嶺南大學文化研究系

OSL Students' Service-Learning Project Output: Booklet

嶺南彩園項目於2014年9月22日正式啟動，項目由群芳文化研究及發展部下屬的「文化與可持續生計組」主辦，同時得到文化研究系及多個合作夥伴的支持，關注可持續發展、和平、文化、生態、生計等議題，在校園內幾處場地種植有機蔬菜植物。於2016-2017年的下學期，服務研習處與彩園合作，組織社區長者及選修服務研習課程的大學生，善用彩園的有機蔬菜植物為食材，一同設計及製作名為「彩園健康食譜」的書籍，推動社區健康飲食及健康生活。製作食譜的工作於2017年二月底至四月中順利進行，透過超過十小時的服務研習活動及交流會，學生和老友記交流健康烹飪及飲食心得、種植經驗、對彩園植物的識知及食用方法，發揮長幼共融及知識傳遞的精神。

Development Of A Rapid Detection And Quantification Method For Yeasts And Molds In Dairy Products, Brandon Nguyen

Department of Food Science and Technology: Dissertations, Theses, and Student Research

A rapid quantitative PCR (qPCR) method was developed for the detection and quantification of fungi that are potentially present in dairy commodities. Genes of interest that were considered and used in the method development were the following: 18S rRNA, actin, beta-tubulin, and elongation factor 1-alpha. The following organisms were screened in this method development: Galactomyces candidus, Debaryomyces hansenii, Yarrowia lipolytica, Penicillium roqueforti, Penicillium verrocosum and Cladosporium cladosporioides. The developed method has a standard curve based on the organism, Galactomyces candidus, and the primers based on the elongation factor 1-alpha gene. Using this yeast and …

彩園健康食譜 : 上集 = Lingnan Garden Healthy Recipes : Part One, 香港嶺南大學服務研習處, 嶺南彩園, 群芳文化研究及發展部, 香港嶺南大學文化研究系

OSL Students' Service-Learning Project Output: Booklet

嶺南彩園項目於2014年9月22日正式啟動，項目由群芳文化研究及發展部下屬的「文化與可持續生計組」主辦，同時得到文化研究系及多個合作夥伴的支持，關注可持續發展、和平、文化、生態、生計等議題，在校園內幾處場地種植有機蔬菜植物。於2016-2017年的下學期，服務研習處與彩園合作，組織社區長者及選修服務研習課程的大學生，善用彩園的有機蔬菜植物為食材，一同設計及製作名為「彩園健康食譜」的書籍，推動社區健康飲食及健康生活。製作食譜的工作於2017年二月底至四月中順利進行，透過超過十小時的服務研習活動及交流會，學生和老友記交流健康烹飪及飲食心得、種植經驗、對彩園植物的識知及食用方法，發揮長幼共融及知識傳遞的精神。

Covariation In Diaspore Mass And Dispersal Patterns In Threemediterranean Coastal Dunes In Southern Spain, Carmen Rodriguez, Teresa Navarro, Ali El Keblawy

Turkish Journal of Botany

The coastal dunes of southern Spain are an original Mediterranean ecosystem, insufficiently studied under dispersal. This study explores covariation patterns among diaspore mass, size, morphology, dispersal mode, and spatial dispersal in 78 native coastal dune species. Three coastal dunes under different climates were sampled and differentiated between fixed and mobile dunes. The Pérez-Harguindeguy methodology was applied and ANOVA, Kruskal-Wallis, and Mann-Whitney U tests were used in order to analyze the covariation. Diaspores were essentially small seeds or achenes (2-4 mm, from 10-5 to 1 g). The study revealed that diaspore mass is a key trait in the differentiation among dunes. …

Foliar Applications Of Alpha-Tocopherol Improves The Composition Of Fresh Pods Of Vigna Radiata Subjected To Water Deficiency, Muhammad Sadiq, Nudrat Aisha Akram, Muhammad Ashraf

Turkish Journal of Botany

Alpha-tocopherol (α-Toc), so-called vitamin E, is a low molecular weight lipophilic antioxidant that generally protects plants from stress-induced cellular oxidation. It is well known that exogenously applied α-Toc is effective in improving plant growth and developmental processes under adverse environmental conditions. The current study was performed to determine the best concentration of α-Toc [0 (no spray), 100, 200, and 300 mg L-1] that could improve the biological yield and chemical constituents of fresh green pods of mung bean (Vigna radiata) and hence their quality under varying water regimes. Foliar spray of α-Toc significantly improved total soluble proteins, chlorophyll a and …

Sharenting: Children's Privacy In The Age Of Social Media, Stacey B. Steinberg

Emory Law Journal

Through sharenting, parents now shape their children¿s digital identity long before these young people open their first e-mail. The disclosures parents make online are sure to follow their children into adulthood. This Article is the first to offer an in-depth legal analysis of the conflict inherent between a parent¿s right to share online and a child¿s interest in privacy. It considers whether children have a legal or moral right to control their own digital footprint and discusses the unique and novel conflict at the heart of parental sharing in the digital age. The Article explores potential legal solutions to this …

Learning Transfer: The Missing Link To Learning Among School Leaders In Burkina Faso And Ghana, Corinne Brion, Paula A. Cordeiro

Educational Leadership Faculty Publications

Every year, billions of dollars are spent on development aid and training around the world. However, only 10% of this training results in the transfer of knowledge, skills, or behaviors learned in the training to the work place. Ideally, learning transfer produces effective and continued application by learners of the knowledge and skills they gained through their learning activities. Currently, there is a limited body of research examining the factors that hinder and promote learning transfer in professional development, particularly the professional development of school leaders in developing countries. This qualitative exploratory study sought to address the gap in the …

Stand Clear Of The Closing Doors, Please: Transit Equity, Social Exclusion, And The New York City Subway, Taylor Novick-Finder

Pitzer Senior Theses

The history of transportation planning in New York City has created disparities between those who have sufficient access to the public transportation network, and those who face structural barriers to traveling from their home to education, employment, and healthcare opportunities. This thesis analyzes the legacy of discriminatory policy surrounding the Metropolitan Transportation Authority (MTA) and city and state governments that have failed to support vital infrastructure improvement projects and service changes to provide multi-modal welfare to New York’s working poor. By exploring issues of transit equity as they pertain to the New York City subway system, this thesis raises the …

Greening Us Legacy Cities: Urban Agriculture As A Strategy For Reclaiming Vacant Land, Fanny Carlet, Joseph Schilling, Megan Heckert

Geography & Planning Faculty Publications

Repurposing vacant land for food production is expanding as a response to urban blight, food insecurity and food deserts. As municipalities integrate urban agriculture in their sustainability plans and zoning regulations, scholars are beginning to take a broader look at the benefits from this and other types of greening strategies. This article investigates current state of research and practice of urban agriculture as an emerging strategy for regenerating shrinking cities. It highlights key findings while offering observations on how public officials and practitioners can leverage this research to enhance urban agriculture as a treatment for vacant land.

University Of Central Florida Factbook 2016-2017, University Of Central Florida

Historical Fact Book and Enrollment

Historical fact book and enrollment data for the University of Central Florida.

The Future Of Narcoterrorism: A Comparative Analysis Between Traditional And Contemporary Terrorism And Its Implications On Narcoterrorism, Lucy Clement La Rosa

Honors Undergraduate Theses

The nexus between terrorism and narcotics is historically well documented. However, its contemporary development is rarely brought to light. Rather, narcoterrorism is often considered to be an outdated phenomenon and characteristic of only Latin America. Nevertheless, narcoterrorism continues to be a global security concern. As terrorism has evolved over the recent decade, terrorist relations to the narcotic industry have also evolved. Understanding the unique characteristics of contemporary narcoterrorism is important to effectively combating both terrorism and narcotics globally.

The intent of this thesis is to comparatively analyze the differences between traditional and contemporary terrorist organizations, and how these differences will …

Using Low-Coherence Interferometry To Monitor Cell Invasion In An In-Vitro Model System, Behnaz Davoudi Nasab

Honors Undergraduate Theses

In an optically random system, such as naturally occurring and man-made media, light undergoes pronounced multiple scattering. This phenomenon has shown a remarkable potential in characterizing complex materials. In this regime, scattering occurs from each individual center of the scattering and independent scattering events lead to multiple light scattering. This phenomenon is often described as a random walk of photons and can be modeled in terms of a diffusion equation based on the radiative transfer theory. In this thesis, we used optical path-length spectroscopy (OPS), which is an experimental method to obtain the path-length probability density of the propagating light …

Evaluating The Quality Of Physical Education Programs Provided By State Department Of Education Websites And The Relationships Between Adolescent Obesity And Sedentary Prevalence, Payton C. Mcwilliams

Honors Undergraduate Theses

This research seeks to determine the relationships between the quality of physical education (PE) programs provided by state departments of education (DOE), obesity rates, and sedentary behaviors described as physical inactivity in adolescents ages 10-17 years old. A modified rubric based on the “Let’s Move Active Schools Assessment” was created and used to quantitatively and qualitatively evaluate the PE programs and physical activity (PA) opportunities provided by websites of the state’s DOE. A total of fourteen states were chosen to be assessed due to having either the highest or lowest obesity or physical inactivity rates. It was believed that the …

Advanced Castes At The Outset Of Eusociality In Wasps (Vespidae), Patrick Piekarski

Electronic Theses and Dissertations

A dominating and widespread view is that evolutionary change is gradual and waits upon mutation. Likewise, it is thought that workers and queens of eusocial insects diverged gradually and stepwise. That is, rudimentary castes preceded advanced castes. This paradigm hinges on eusociality having evolved once in Vespidae, and primitively eusocial paper wasps lacking ontogenetic caste biasing (differentiation of castes during larval development). Using a phylogenomic approach this study shows strong evidence for two origins of eusociality in vespid wasps, wherein one origin is likely characterized by the sudden appearance of castes with physiological, and perhaps even morphological, differences established before …

An Anthropological Study Of Eating Perspectives, Meal Composition, And Food Choices Among Diverse Student Populations, Chelsea Daws

Electronic Theses and Dissertations

My thesis explores the factors that shape or reinforce international college students' perceptions of food. This research not only examines how cultural values affect individual nutrition and maintenance of eating behaviors, it also addresses the extent to which accessibility impacts eating behaviors. Notably, the research endeavor uses the concept of dietary habitus as an underlying directive mechanism for study. This study finds that most students experience a reduction in their fruit and vegetable intake. Another finding suggests that international students eat healthier and are more structured in comparison to domestic students if they hybridize their dietary habitus. Research findings also …

Ice Hockey Coaches' Beliefs And Perceptions Of Coach Education, Alexander Chriest

Electronic Theses and Dissertations

The purpose of this descriptive study was to provide insight into ice hockey coaches' beliefs and perceptions of coach education programs. USA Hockey is the governing body for all hockey in the United States and requires education through the USA Hockey Coaching Education Program. Gaining a better understanding of how hockey coaches perceive coach education programs provided information that can be used in the evaluation and development of future programs. The theoretical framework used in this study was expectancy-value theory. USA Hockey youth coaches (N = 410) were surveyed using the Coaching Education Questionnaire, a 55-item instrument used to collect …

Consequences Of Altered Short-Chain Carbon Metabolism In Heart Failure, Julie Horton

Electronic Theses and Dissertations

Cardiovascular disease is currently the foremost cause of death within the United States. Heart failure (HF) is a syndrome defined by the inability of the heart to adequately execute requisite pump function in order to deliver nutrients and oxygen to peripheral tissues, irrespective of etiology. One of the most common causes of HF is chronic pressure overload due to hypertension. Ischemic heart disease is also a common driver of HF, often in conjunction with hypertension. Pressure overload initially causes compensatory metabolic changes. Structural changes follow shortly thereafter typically resulting in left ventricular hypertrophy. Eventually, the heart loses the ability to …

The Effects Of Sprint Interval Training And Maturity Status On Metabolic And Neuromuscular Fatigue Thresholds In Adolescents, Kyle Beyer

Electronic Theses and Dissertations

Purpose: To examine the maturity-related differences in the adaptations to systemic and localized fatigue thresholds (FTs) in response to sprint interval training (SIT) amongst adolescent male athletes. Methods: Twenty-seven adolescent male athletes, 11-17 years of age, completed pre-testing, six weeks of SIT, and post-testing. Participants were grouped according to their number of years from peak height velocity (PHV), an estimation of somatic maturity status, into PRE ( < -1.5yr), PERI (between -1.5 to +1.5yr) and POST ( > +1.5yr) PHV groups. Each testing session consisted of a ramp exercise protocol on a cycle ergometer. During the protocol, three systemic FTs, gas exchange threshold, ventilatory threshold, and respiratory compensation point were calculated …

A Preliminary Assessment Of Steroid Reproductive Hormones In Archaeological Human Hair Utilizing A Modified Enzyme-Linked Immunosorbent Assay (Elisa) Technique, Elisha Tisdale

Electronic Theses and Dissertations

Hair has become an invaluable resource in forensic, clinical, and bioarchaeological research. The unique interaction between the growing hair fiber, the hair follicle, and the endocrine system inundates the growing hair fiber with an incremental record of many of the discreet physiological processes of the body. Recently, a novel study by Webb et al. (2010) demonstrated that endogenous records of cortisol, the "stress hormone", are capable of being extracted from archaeological human hair through a modified enzyme-linked immunosorbent assay (ELISA) technique, thus providing insight into the "invisible" stress experiences of an individual that would otherwise not be detectable through skeletal …

The Bovine Rumen Microbiome Revealed By Different Fractions Of Rumen Contents, Ashlee Breakstone, Jiangchao Zhao

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The bovine rumen microbiota is very important in terms of animal functionality and digestion. The fermentative capability of the rumen provides means for the digestion of complex plant material that is indigestible by humans. The rumen microbiota is made up of billions of microorganisms, primarily bacteria, that digest and ferment feed into volatile fatty acids and bacterial protein for the animal’s energy and protein needs, respectively. Changes to the rumen microbiota can have a direct measure on animal growth, health, and performance. The possibility of productivity boosts in the cattle industry make the rumen microbiome a hot topic in the …

Effects Of Labeling And Consumer Health Trends On Preferred Ground Beef Color Characteristics, Fat Content And Palatability In Simulated Retail Display, Fred W. Pohlman Ii, Fred Pohlman, Nicholas B. Anthony, Famous Yang

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Nutritional concerns have impacted the protein market, decreasing red meat consumption as well as prompting the advent of lean and extra lean ground beef. However, such lean blends of ground beef may suffer in palatability. This study seeks to bridge the gap between perceived health and palatability. Participants were asked to identify the relative importance of characteristics commonly used in purchasing ground beef and select a preferred package of ground beef from labeled and unlabeled sections consisting of 4%, 10%, 20%, and 27% fat content. Instrumental color data and their main drivers were also collected. Participants then completed a blind …

Gender Perception Of The Rationales Behind Vegetarianism, Nicholas Tallant

Honors Theses

No abstract provided.

Exploring The Socio-Ecological Dimensions Of Agricultural Expansion In New Hampshire, Jennifer Wilhelm

Doctoral Dissertations

Forest ecosystems and agriculture represent coupled socio-ecological systems that are shaped by human activity. The extensification of agriculture (expansion of food production on the landscape) can cause significant changes in land use, and can contribute to the degradation of biodiverse ecosystems and the services these systems provide. Yet the need to increase food production capacity, either through agricultural intensification or extensification, continues to rise. In this dissertation, I address the critical issue of agricultural extensification from several angles.

The first chapter assesses agricultural expansion through the lens of urban and peri-urban agriculture (UPA) through systematic review of the literature. I …

Development Of Novel Bio- And Heterogeneous Catalysts For The Production Of Bio- And Green Diesel, Ye Deng

Doctoral Dissertations

Diminishing petroleum reserves and increasing environmental awareness has led to an urgent need to develop alternative fuels, such as biodiesel. Enzymatic trans/-esterification of waste cooking oils with a lipase catalyst is a promising environmentally-friendly process to produce biodiesel, compared to the current industrial chemical process. Despite several advantages, there are a few technical and economical obstacles that limit this process, such as insufficient availability of large quantities of inexpensive lipase suitable for catalysis, and bad performance at low temperatures due to biodiesel’s low cetane number. These limitations are addressed in this dissertation using genetic engineering of plants to produce the …